What is the address of Hillsdale Improvement District?

The address on the plant’s EPA facility record is 26001 W 255th St, Paola, KS 66071, in Miami County. Its coordinates are 38.6561, -94.8518. For some plants the record holds the utility’s mailing address rather than the plant gate.

What treatment technology does Hillsdale Improvement District use?

Klarifi has identified one treatment structure or unit process at the Paola facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Hillsdale Improvement District?

The facility discharges under NPDES permit KS0081396, currently effective, expiring June 2029.

Is Hillsdale Improvement District in compliance?

Discharge monitoring reports show 2 violations at Hillsdale Improvement District in the last three years, 2 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Hillsdale Improvement District and how do I contact them?

Hillsdale Improvement District is a publicly owned treatment works in Paola, Kansas. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Hillsdale Improvement District

26001 W 255th St, Paola, KS 66071 · Miami County · Publicly Owned Treatment Works

Average flow: —

Design flow: —

NPDES permit: KS0081396; Effective

Permit expires: June 2029

Population served: 274; CWNS 2022

Hillsdale Improvement District is a publicly owned wastewater treatment plant in Paola, Miami County, Kansas, serving about 274 residents. It discharges under NPDES permit KS0081396 (effective), which expires in June 2029, with 2 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Hillsdale Improvement District.

Available with a free Klarifi account

See the full treatment train at Hillsdale Improvement District: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 2

Effluent violations: 2

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

Decision-makers at Hillsdale Improvement District.

No verified contacts on file yet

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Nearby wastewater treatment plants in Kansas

Miami Co. S.D - Walnut Creek Estates

Hillsdale · 3 mi away

0.0079 MGD

Spring Hill No. 2 (mechanical)

Spring Hill · 5 mi away

0.79 MGD

Spring Hill Waste Water Treatment Facility

Spring Hill · 6 mi away

—

Paola, City Of

Paola · 7 mi away

1.47 MGD

Miami Co. Sd No.2 (bucyrus)

Bucyrus · 9 mi away

0.0082 MGD

Edgerton Big Bull Creek

Edgerton · 9 mi away

0.2 MGD

Osawatomie Mwtp

Osawatomie · 11 mi away

0.52 MGD

Wellsville Wastewater Plant

Wellsville · 13 mi away

0.13 MGD

Hillsdale Improvement District: frequently asked questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed October 19, 2026; facility record last updated March 9, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms

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